Device for attaching saving means to sunken submarines



p 15 1931. J. NOVQTNY 1,823,8

DEVICE FOR ATTACHING SAVING MEANS TO SUNKEN SUBMARINES Filed April 26, 1930 3- topping the edge of the cylinder a.

Patented Sept. 15, 1931 JOHANN NOVOTNY, or mtsnnncz c osLov Km DEVICE FOR ATTACHING SAVING Application filed April 26,

My invention relates to improvements in devices for attaching saving means to sunken submarines, the main object being to provide a device which is in permanent connection with the deck of a submarine and to which saving means of different kind may be attached in the case of the submarine being sunk, the said means being intended for allowing the crew of the sunken boat to communicate with a ship sent out for help.

My invention will be more fully understood by reference to the accompanying drawings forming a part of this specification, and in which:

Fig. l is a perpendicular section through the device in connection with the deck of a submarine,

Fig. 2 is a side elevation of the mounted device,

Fig. 3 is a horizontal cross-section upon the line 3-3 of Figure 1, and

Fig. 4 shows a detail view, in a section and in a plan View respectively.

Describing a convenient form of the inven tion such as I wish it to be applied to the deck of a submarine, the device comprises a main piece (1, preferably made of steel and made in the shape of a cylinder, the outer face thereof carrying a screw-thread b intended for being 1?;30 screwed into a screw-threaded opening provided in the boats deck 0, the said opening be ing positioned so as to establish a communication with the room for the crew. The inner face of the said cylinder is also provided with a screw-thread designated by d and adapted to be screwed into engagement with the externally threaded portion of a cylindrically shaped member 6 made substantially of steel and the upper edge of which over- In the said cylinder e there are vertically mounted three steel tubes f, g and h positioned at equal distance from each other and projecting at their top from the circular wall of the said cylinder. The tubes 7 and g are at their top and lower ends each provided with an external screw-thread 2' and is, and Z and m respectively, and these tubes together with the lower extremity of the tube h, are projecting from the lowereircular wall of the cylinder ro SUN-KEN SUBMARINES i939: seria No. 447,656.

wi'aAll theqsaidatubes are normally closed by valves (not shown in the drawings) to be fopenated by hand,- and both screw-threaded eiids'ofthegtubesf and g are each adapted to? be brought in connection with flexible tubes, the one ifor-introducin'g fresh air into the submarine. and the other for expelling the bad-a-ir; the third tube 'h serves for the introduction'of a telephone cable having an envelope of rubber or of any other suitable insulating and prote ctingvmaterial.

The described arrangement may be closed All; top and foot byutwo-covers n and 0 respectively. -,To.this end,-. the.vu'pper. half of the cylindere :is' provided with anezrternal screwthreadjp, and the loW'erhalf-of the said cover 1 is providedwith an internal screw-thread ;gj;-and.the lower portion bodykof the cylinder a;is provided withan internal screw-thread 1, whereas .the cover 0 having its top portion :made 'in the shape of a turned-in flange 0 carries at the outer face of the said flange a screwrthreads'. Both covers, shown in their -operative or closing position in Figure 1, are each-t'erminated-by a'hexagonalhead t and mzi'espectively tobe operated by'means of a suitable:wrerrch r In operation: When,-owing, to an accident, a rsubmarinegsinkshit discharges in known .inannerbil-zwhichgrising to the surface of the wwater,-indicates the place where-it is posiitiond onthe sea-ground.- The ship sent out :to ib riiigf;lielp, easily==finds thisplace, and ca'usesits diver to descend "to the sunken boat. :Ks-zsoon Eas: the diver :has reached the deck 5013 the 5 boat, zhe' uisiil-ooking 1 for the emplace- -ment of the described device: (the upper half iof whichkprojectingfrom the level of the ;de'ck-'), -arid having foundthe said emplace- R- ment, he is knockingatthe deck in. order to :ihaive the-crewinformedof the helpbrought, :ahd Zthe crewjhas ,to *answer; by knocking elikewise. N ow, the diver unscrews the cover *iaifrom its seat-b means ofa wrench, the said ;:eover -being pre erably in connection with an crittachingchain so-as to prevent its loss. zuk'fter having unscrewed the cover, the diver izntroduces-iritorthe open ended tube h the ex- -tre'mity ofatelephone cable taken with him. iInthemea-ntime the crew, inside the sunken boat, has removed the cover 0 from its seat, opened the valve and drawn the said tele- Phone cable into the interior of the submarine. Thus, the crew is enabled to communicate with the saving ship. Now, the diver has screwed in position upon the screwthreaded ends 2', is of the tubes f and 9 respectively, a flexible tube for introducing fresh air into the submarine, and a flexible tube for having the bad air expelled therefrom, the valves of the said tubes having been opened by the crew and a flexible tube having been likewise screwed in position upon the screw-threaded inner extremities Z and m of each tube 7 and g respectively. The crew is thus prevented from perishing by the action of stale air.

While the elements shown. and described are well adapted to serve the purposes for which they are intended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within its purview such changes as may he made within the scope of the appended claims.

Having described my invention, what I claim is:

1. A device for attaching saving means to sunken submarines of the character described, comprising in combination, a cylinder made of steel, having an external screwthread adapted to be screwed in position into an internal screw-threaded passage made in the deck of the submarine to communicate with the crews room; and having an internal screw-thread for engagement with the external screw-thread of a cylindrically shaped member positioned inside the said: cylinder, a series of tubes mounted in the cylindrically shaped member, the said tubes being intended for the reception of saving means, and covers for removably closing top and bottom of the said cylinder,

2. A device for attaching saving means to sunken submarines of the character described, comprising in combination, a cylinder made of steel, having an external screw-thread adapted to be screwed in position into an internal screw-threaded passage made in the deck of the submarine to communicate with the crews room; and having an internal screw-thread for engagement with the external screw-thread of a cylindrieally shaped member positioned inside the said cylinder, a series of tubes mounted in the cylindrically shaped member, two of the said tubes being at their top and bottom each provided with an external screw-thread adapted to be brought in connection with flexible tubes for introducing fresh air into the boats room and for expelling bad air therefrom, the third tube being adapted for the reception of a telephone cable, an external screw-thread at the outside of the cylindrically shaped innermost member intended for being screwed signa ture.

JOHANN NOVOTNY. 

